1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ae399bfef88b91ddfd0b07146d361307fb26a6a158923a9bcd4e6e61931df4. Chain 2 (Bitcoin): anchored in block 953627 (2026-06-14T11:43:04Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2e3a0a84-f74e-40b5-80b5-ef56a3acd3ce.json and https://artists.proofprofile.net/proofs/artist/2e3a0a84-f74e-40b5-80b5-ef56a3acd3ce.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d9c23019721d48b75fe86149347f41acfa738fe6bb2d16a15d2c315f61353c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR59Y2313001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89be9be7bb11dfd940733de505995f31771bbf7014a150418c7d7577e18b1029. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR59Y2313003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee0438185f716d168f2c05bbb171c09b9b1ffedf35a4e1842e2af56eb1c442f6. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR59Y2313005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacdb52a1c945d8cba2f2393b23b331544fc937cea8ed8e8502977afc17de3270. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR59Y2313007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc64e754ac9da4293fe37871d46fe0f42a9eb8f78d3dcf6f82ee64432845343. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR59Y2313009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb411af357ff0f1fb5fd76f776c589c3fcd196716879a4a990b9d94d1d4f08e87. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR59Y2313011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ff7a1087b4a473a43c3b332958830645840ffa661a5c8c5422af42cb3f1576. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR59Y2111901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x822bda766471433e31d8dffadf15e11414ee6f7afb37429aa18d9fba16d2c582. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR59Y2111908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacdb52a1c945d8cba2f2393b23b331544fc937cea8ed8e8502977afc17de3270. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR59Y2313007.
Have You Counted All the Presents Under the Tree
Have You Filled the Fridge and Stockings, Dear?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e5cebfa99c5c87b8bd7108029d722589dbc767170698f4850c4e56d263cab1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR59Y2212301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a5e0d252671a39ea456657790e4c74b25cf5154f55170e0d091ec7573d6ffa. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR59Y2212302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39edce0d56665edf7063fb86ac26de188570b0974cc87fb40aa9eebaf62c8da8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR59Y2212303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2897f65ca0e3af2d4a42c56fbe1581f5b6d82fa37f605a9c7c3d7ee263c14a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR59Y2212306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a5e0d252671a39ea456657790e4c74b25cf5154f55170e0d091ec7573d6ffa. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR59Y2212302.
On veut plus d'océans - L’album de tous les dangers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d8d22a39d7c720cfe4f0f5571459631b0bcfd6c18bf117d236a25112d8faba. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92288964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce804c555a2d2725a988a9e244414c35053d1aad511a068873c8d255ec48b23. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92288965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38800409622b6b11618bef9216cd20824c47d06ecebabf733799c95bbfec3263. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92288966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc89019287b5a193d86ad61964f4f371382e1fbb48f0f2bb0b10969dee630774e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92288968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5854b58965b7e489194a50ef42130fff403861b74a21592bf9ef64332042e6b7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92288969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb49ba0a3e77f9368db77ed35057b02b096262e6171d3524c55bee3553cfc2a6. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92288971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf157919ba9b38f8d73a474897cd0078eae86e342e51d52dda19d9473a3f4115a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92288973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf9e6a7acf068a4386714af85d9d737cab91e6e49f1c45d4d77ec07e06ade93. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92288974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf54ec7020423dd7b784ac3607425661709a2be110231bf542dc969dd09ba3d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92288975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1902ba710deca603109db1eb51434449b114a1313ce5c9abb68f7a250f6ffa90. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W12349093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff077620dc67ad342ad569c3e12f5873953044df59055142eb5015244365852. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W12349095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca3361c709000a73494d232a120842299bfbb99fe9df767e7e3654cc54506425. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W12349096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b6c00f57da2a6fe80b88d7c1b5666cd45fa115ae910a684dbe903a4ac9f1ff. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W12349097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb443b49492fe13aee4951e0517626de611ddab060806447a3249c7f90e789619. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W12349098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d46b7e747cebbf30aac8434aaabeada43b9be84085069e8893f88c3aa3d262. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W12349099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8372ea5096489a14490d5bc7bc1a4a08f6ddd361e5ffc67f05877863e9a2ce95. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W12349100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b5b66e1a104af2dc3971d94d61433dd5a103467e0644678e74b2aff14b43b6d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRPK22112164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2c0e3f223c5151a324d235843731bd4417d08f3db7d491e7be605e591fe6ea. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W12349106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4093bd7c0abb6c093e77bdbe93a9a9ea49fc68df62e5261d1c65c611817c0349. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W12349110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2e6103e234144ea5f2dc15ea460210ed6343987795ba12118d7f94e747e467. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR0Z42102290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb49ba0a3e77f9368db77ed35057b02b096262e6171d3524c55bee3553cfc2a6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92288971.